/*
 * Copyright 2012 Gregor Schauer
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package at.schauer.gregor.vienna.validator;

/**
 * @author Gregor Schauer
 */
public class NullValidator<O> implements Validator<O> {
	protected Type type;

	public NullValidator(Type type) {
		this.type = type;
	}

	@Override
	public O validateObject(O obj) {
		return type.isBefore() ? null : obj;
	}

	@Override
	public String validateString(String obj) {
		return type.isAfter() ? null : obj;
	}
}
